Morning Notes

Wahlburgers Coming to Ballston — Wahlburgers, the burger chain founded by the show biz Wahlbergs (Mark, Donnie, Paul), is coming to Ballston next year. The eatery will be located near the intersection of Wilson Blvd and N. Glebe Road. [Washington Post]

Metro Releases Cause of Derailment — What caused a Metro train to derail near the East Falls Church station on Friday? The transit agency says it was a deteriorated section of track in which the rails became too wide. [Washington Post]

Dark Star Park Day — Yesterday Arlington County held its annual observance of Dark Star Park Day in Rosslyn. The public park, built in 1984, is designed to have its shadows line up once a year, on Aug. 1. [Storify]

County Touts Innovation Recognition — Three Arlington County programs have been recognized for innovation from the Virginia Association of Counties. [Arlington County]

Road Rage on a Bike Trail — Road rage isn’t something that only happens with motorists. Occasionally, it happens among cyclists as well, as this story from an incident on the Mt. Vernon Trail demonstrates. [Storify]